Valve and lock.



E.' W. PRIGAN.

VALVE AND LocK.

APPLICATION FILED MY 13| I9I5. l1,175,557'. Patented Mar. 14

2 SHEETS-SHEET l.

'www

M/fl if 4 Z @s E. W. PmGAN.

IVALVE AND LocK. APPLlCATlON FILED MAY 13 1915.

$175,557. y Patented Mar, 14,1916.

. y l 0 2 sHEETs-SHEET 2J ERNEST W. PRIGAN, 0F CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF T0 OSCAR F. SCHMIDT, `OIE CHICAGO, ILLINOIS.

VALVE AND Loox.'

Specification of Letters Patent.

Patented Mar. 14;, 1916.

Application filed May 13, 1915. Serial N o. 27,167.

To aZZ whom z't may concern.'

Be it known that I, ERNEST W. PRIGAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Valves and Locks, of which the following is a specification.

One of the objects of my invention is to provide a valve in a conduit carrying the gases to or from an engine, the casing of which is an integral part of the conduit, and a lock controllingl the valve and which is inseparable therefrom, the casing of which is a substantial integral part or equivalent of the conduit and of the valve casing, or in xed association therewith, whereby the lock and valve may not be removed from place except by machine shop procedure.

The essence of the invention consists, among other things, in providing means for closing the ingress or egress gas path to or from the engine and the inseparable locking means therefor to prevent unauthorized starting of the engine.

Anotherobject of my invention consists in generally improving locks for .automobiles and the like.

Other and further objects of my inven tion will become readily apparent to persons skilled in the art from a consideration of the following description when taken in conjunction with the-drawings wherein Figure l is a side elevation of a typical interna-l combustion engine as applied to an automobile, showing the intake side. Fig. 2 is an enlarged central section, taken on line 2-2 of Fig. 5, through the conduit, between the carbureter and manifold, showing the valve and lock in place and the valve closed and locked. Fig. 3 is a central vertical section taken on line 3 3 of Fig. 8. Fig. 4 isa view similar to Fig. 2 showing ,the valve open. Fig. 5 is a section taken vjust above the 4valve on line 4-4 of Fig.

2. Fig. 6 is a transverse section taken on line 6-6 of Fig. 2. Fig. 7. is a transverse section taken on line 7-Jf of Fig. 2. Fig. 8 is a front elevation of the dial plate of the permutation lock, as it appears on the instrument board of an automobile.'

In all the views the same reference characters are employed to indicate similar parts.

In the drawings I `have shown one exempliication of m invention4 wherein the device is inseparab y fixed between the carbureter 10 and the intake manifold 11 of the engine 12. The object of making the device in this manner is to render it practically impossible for a person outside of the machine shop or unsupplied with proper .tools to conveniently remove any part of the device so that without considerable noise and expenditure of time a novice, or a. person unacquainted with machine shop 'practices and appurtenances cannot hurriedly open the lock by removing parts and thereby place the engine in condition for operation.

For mechanical purposes and to simplify and cheapen the construction, I have shown the housing or casing of the lock 14 and the.valve 15 made vof plates 16 and 17, riveted together at their marginal edges, as at 18. The pipe or conduit 19 leading to the header 11 is fitted inseparably in the casting 16 and in like manner the pipe or conduit 20, which leads to the carbureter 10, is fixed tothe plate or casting 17. Between these two pipes is a gate valve 21, shownclosed in Figs. 2 and 5 and shown open in Fig. 4. In closed-position, as shown in Fig. 2, it will vbe clearly seen that gases cannot be drawn from the carbureter through the pipe 20 into the pipe 19 leading into the header 11, but when the valve is open, as sh'ownv in Fig,l 4, there is provided an unobstructed passage-way between the pipes 19 and20 so as not to impose any additional friction by the valve upon the moving gases. Thus we have in the above described structure a two part casing separable in av 'horizontal plane, carrying a slidable valve and arranged for insertion in the cutaway portion of the' gas intake pipe, the casing parts being secured to the adjacent ends of the intake duct.

Attached tof' `the gatevalve 21 isa rod 22, as at 23. The rod 22 ,with the val-ve 21 -is lfreely slidable in apertures 24 and 25 respectively, made in the casing castings ifi., ,and 17. If it were not fori-'the loel 14 the valve 21 and rod 22 could be freely moved ,shown in' Fig. 3.

into closed and open position at any time by pulling on the knob 26, which is .on the face side of the instrument board 27 and which is connected to an angularly disposed rod 28, secured to the rod 22, as at 29, as

To prevent the movement of the valve, controlling the conduit for the gases leading to or from the engine, i provide a lock 14 and for convenience of use and operation prefer to provide a combination or permutation lock. I provide an enlargement 30 in the upper casing half, to house the lock mechanism, which consists of a rotary tumbler 3l fixed to the rotatable shaft 232 and notched or cut away, as at 33, to clear the rod 22, 'as shown in Fig. G. The tumbler 3l is secured to the shaft 32, by a pif'l 34:. T he tumblers and ,36 are both loose `'upon the shaft 32 and each tumbler is provided with a notch 33. A collar 38 is secured to the shaft'32 and prevented from rotatingthereon by a Screw 31, for fixing it to the shaft. The tumbler 35, is loose on the shaft.4 A cross pin passes through the shaft and is contained in the counter-bored recess -tlv of the tumbler 35. Projecting laterally from the tumbler 35 is a. coasting pin i2 which is adapted to contact the pin si@ when the shaft is rotated for the purpose oi' moving the `tumbhn's. Another pin i3j iassesthrough the shaft and is a`a'pted to make intimate Contact with the pin 4i that projects inwardly from the tumbler 36 within 'the chamber 41 or counter-bore in the main tumbler 3G.

Seated on the peripheral surfaces of the tuinblers 35 and 36 are friction producing springs and 4:5 which are secured to the housing, as by screvs e7-47. The object oi these springs is to frictionally hold the tumblers 35 and 36 in the positions in which they have been placed through the instrumentalit oit' the rotating shai`t32 and the pins secured thereto, when the 've tuiiibiers have been rotated in reetion as common with permutation locks.

Each of the tun'iblers is provided With a fiance, as 5U, and a part or drum oi' smaller diei r, as ihe rod 52 is out away, as at o thatthe 'bange and drum parts of the troubler Si, may'enter cutaway portion or' the rod. The rod 22 is also cut away, as .t 53, and 5i, i'or iike purposes for the respective tumbicrs and 36, and when portions of the tumblers are within these cut-aw; y portions of the .rod 22, it Willibe impossible to slide the rod 22 and thereby to move the valve 2i. Vlrihe opening to the recess in the housing 30 is eiosed by an upstauding pio'-ection'on the iower casing part thus.eompieteiy inclosing the lock mechathe shaft o2, in order to move s to their proper relative posinitraat? tions in register with the rod 32 at a remote point from the lock, as from the instrument board'of an automobile, I provide a flexile shaft 55 secured to the outer end of the ro 32, as at'56, and lead it up through the instrument board 27 of the automobile..

llinev position shown in Fig. 3. To close the valve it is only necessary to push the knob 26 back to the position shown in full lines in Fig. 3, when the valve 2l will be moved to close the opening between the conduits 19 and 20. The lock mechanism is common in arrangement and operation with the usual permutation locks of the same general character.

it is'of course manifest that the valve and lock could be applied to the exhaust outlet of an engine and accomplish the object desired and furthermore that it can be used in connection with a steam or air engine with equal facility.

While I have herein shown a single enibodiment of my invention for the purpose ofclear disclosure it is apparent that changes may be made in the material specified and in the disposition of the parts, Within the spirit and scope of my invention.

Having described my invention, what i claim is: I

l. In combination with a duct communieating with the cylindei' of an internal co1n' bus-tion engine, of a two-part casing associated with the duct, its parts being joined in a plane ats'ri'ght angles te the axis of the duct, a'duct closin valvesiidable in said casing, a Valve loc (ing mechanism carried in a recess formed in one part or, the casing and a projection on the other parto the casing adapted to close the opening in said recess and secure the looking mechanism in position.

2. In combination with ay duct communieating with the cylinder of an internai combustion engine, and having a. transverse section thereof cut away, of a two-part casing surrounding said cut-away portion et the duct, one part of the casing secured 4to the duct at one side of the out away portion and the other part securejtdthe duct at the opposite side of .the crit away' portion, the two parts of said casi-ng being joined in a.

plano at right angles to the axis of the duct,l

a slidable ductficlosing valvemoving-in the plane (1i-juncture between ythe two parts of the casing, a vallocking mechanism carried in a recess formed in one part of the hand in the presence of two subscribing witcaslng, and a proJectlon on the other part nesse's.

of the casing adapted to close the opening ERNEST W. PRIGAN. in said recess and secure the locking mecha-l In the presence of- 5 nism in position. FORE BAIN,

In testimony whereof I hereunto set my MARY F. ALLEN. 

